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3 years ago

6

Urgent!!! PLEASE HELP, FAST!!!

1 answer:

gayaneshka [121]3 years ago

6 0

The best way to solve this is to put it into a proportion:
$\frac{x}{84} = \frac{ \frac{1}{4} }{ \frac{3}{4} }$
So you cross multiply to get:
$21= \frac{3}{4} x$ (the 21 is from $\frac{1}{4}$ •84)
Then multiply by $\frac{4}{3}$
And you get $28, so the reduced price would be $28.

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